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Liquid flowmeter

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Publication number
US2333791A
US2333791A US43860642A US2333791A US 2333791 A US2333791 A US 2333791A US 43860642 A US43860642 A US 43860642A US 2333791 A US2333791 A US 2333791A
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Grant
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Prior art keywords
liquid
product
column
globules
light
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Jr Miller R Hutchison
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Eastman Kodak Co
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Eastman Kodak Co
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/704Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S73/00Measuring and testing
    • Y10S73/11Photoelectric cell

Description

Nov. 9, 1943. M. R. .HUTC-HISON, JR 2,333,791

[LIQUID FLOW mama Filed April 11. 1942 COUNTER a MILLER R.HUTCHISON,JR.

INVENTOR M717- m BY ATTYAKAGT Patented Nov. 9, 1943 LIQUID FLOWMETEB.

-Miller it. Hutchison, Jr., Rochester,-N. Y.. assignor to Eastman Kodak Company, Rochester, N. Y.,a corporation of New Jersey Application April 11, 1942, Serial No. 438,606 3 Claims. '(Cl. 73-194) This invention relates to liquidflow meters, particularly to devices for correctly indicating a very slow flow or a very small quantity of liquid per unit of time. a A major object of the invention is to provide such a device which comprises ele-' ments of utmost simplicity with elimination of mechanical parts that would be subject to wear. corrosion, and variable characteristics due to temperature changes and other external influences.

A practical example of a structure embodying this invention is shown in the accompanying drawing, which is somewhat diagrammatic and is not to be construed as representing the sole means of accomplishing the object above set forth. The drawing indicates the meter in sectional elevation.

The measurement of liquids flowing through pipes or orifices is a well known art insofar as the measurements concern considerable quantities of liquid to be measured, although the measuring devices are usually complicated and expensive.

However, when very small quantities of liquid are involved, of the order of a few minims per minute, mechanical measuring instruments are inadequate and unreliable.

I have found that a liquid to be measured, when plastic. ,The column is filled with s liquid 0,

havinga higher specific gravity than the product passed through a pipe terminating in an upwardly directed nozzle with a restricted orifice is allowed to fiow slowly therethrough, it will issue from the nozzle in a regular series of globules if the orifice is immersed in a liquid of a higher specific gravity, and with which the liquid issuing from the nozzle is immiscible. The globules as they emerge from the nozzle rise one by one to the top of the heavier liquid. In the present invention means are provided whereby each globule as it rises will intercept a ray of light which is arranged to pass constantly through the heavier liquid to a light-. sensitive cell. The latter, through a suitable relay, may employ standard electrical impulses to actuate a counter of any suitable type, thereby ultimately providing an indication of the flow.

A structure as above outlined, reduced to simple elements, may comprise a reservoir I holding the fluid P to be measured (hereinafter entitled the product), whichmay be low-gravity liquid such as gasoline. A pipe 3 provided with a suitable manually controlled valve 4 serves to conduct the product from the reservoir l to the restricted terminal orifice of nozzle 5, which may resemble P, for instance glycerine, to a level indicated at 9, which must be below'the bottom of reservoir I. The liquid 8 must be one in which the product P will not mix or be dissolved. It is also essential that reservoir I be located high enough to provide a sumcient head of the product in pipe 3 to overcome the tendency of the heavier liquid in the column to back up in the pipe.

When the valve 4 is opened the product P flows through pipe 3 by gravity. In practice the valve is barely cracked so that when a slight dribble of the product accumulates in the nozzle 5 a slug will form which eventually rises and breaks free, floating to the top in globular form as indicated at H). As successive slugs or globules rise, actually at very regular intervals, they accumulate at Pfeventually overflowing through a side outlet IS. A valve la is also provided so that the product may be shut off completely without disturbing the valve 4.

The manner of utilizing the column and the rising globules as a measuring device consists-in employing suitable means for counting the globules as they rise from the nozzle 5. Obviously, if the globules are counted it is quite simple to catch the product in a receptacle at the pipe l5 and time the output from the beginning to the end of the flow. This can be measured and the rate of flow or the number of globules per unit of time ascertained, and thus a given quantity may be accurately determined.

A simple means for counting the rising globules is shown as comprising a light source ll, rays from which pass through a lens I2 to a focus at the center of the column I, whence they disperse and emerge from the other side of the column and impinge on the plate 13 of a. photo-cell ll.

As is well known, electric energy flowing through the plate will vary in accordance with the amount of light falling thereon. Therefore,

each time a globule ID of the product rises through the column liquid 8 it intercepts the light beam and aflects the output of the cell plate l3.

Current from a supply source It through a relay I1 is thus periodically directed through an elec- -tromagnet l8 which in turn moves an armature is once established, as by measuring the total output from tube ll after a given number of globules have passed the light been}, a count of any number thereafter may be made and their volume or liquidmeasure accurately determined.

I claim:

1. A liquid flow meter comprising a transparent column containing a. liquid heavier than the product to be metered, a conduit for the product terminating in a restricted orifice within the column, an electronic indicating device including a' light 'source the rays from which are focused within the column, said rays being adapted to asssnai' anelectronic indicating the liquid, a light source. apparatus, and means for projecting'lisht from said source through the column to the indicating affect the indicating device as portions of the product escape from the orifice and rise through the column.

2. A liquid flow meter comprising a column containing a liquid of higher specific gravity than the product to be metered, both the liquid and the column being-light-permeable, means for conducting the product into the column and for permitting uniform portions of the product to escape at spaced intervals and rise upwardly through fectedby said rays after the letter product.

apparatus, whereby the risingportions of the product intercepting the light rays affect theinrising globules intercept said rays, and indicating apparatus including means adapted to be afhave passed the rising globules. 4

MILLER R. HUTCHISON, JR.

US2333791A 1942-04-11 1942-04-11 Liquid flowmeter Expired - Lifetime US2333791A (en)

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453376A (en) * 1944-11-21 1948-11-09 Francis H Lagasse Means for measuring the velocity and volume of fluids
US2458064A (en) * 1944-10-13 1949-01-04 Petta Angelo Raffaele Di Humidifier for air-heating furnaces
US2492768A (en) * 1947-09-18 1949-12-27 Gen Electric Cloud moisture meter
US2523517A (en) * 1947-07-07 1950-09-26 John T Potter Counting and batching device
US2532218A (en) * 1945-12-03 1950-11-28 Olin Mathieson Self-cleaning capillary tube type flowmeter
US2593311A (en) * 1948-04-03 1952-04-15 Watson D Harbaugh Apparatus for detecting the presence of foreign bodies in transparent containers
US2594668A (en) * 1950-01-12 1952-04-29 Atomic Energy Commission Flowmeter
US2649591A (en) * 1951-10-22 1953-08-25 Palma Adrien Lefebvre Electronic control for flushing apparatus
US2683986A (en) * 1952-05-27 1954-07-20 Us Navy Electric gas flowmeter
US2710715A (en) * 1950-04-17 1955-06-14 Technicon Chromatography Corp Automatic fraction collection apparatus
US2730005A (en) * 1951-10-09 1956-01-10 Gen Electric Means for detecting aerosol particles
US2732753A (en) * 1956-01-31 o konski
US2769365A (en) * 1949-08-22 1956-11-06 Loeschcke Hans Counting device for microscopic particles
US2770234A (en) * 1954-04-05 1956-11-13 Baxter Laboratories Inc Parenteral administration of liquids
US2779232A (en) * 1953-04-09 1957-01-29 Frank R Small Blood counting method
US2789765A (en) * 1950-05-04 1957-04-23 Nat Coal Board Apparatus for counting and measuring particles
US2915606A (en) * 1956-09-13 1959-12-01 Berthold A Knauth Mechanism for measuring linear flow in flowmeters as a function of rotary motion therein
US2953440A (en) * 1956-06-15 1960-09-20 Phillips Petroleum Co Analyzer and control apparatus
US2967450A (en) * 1957-01-30 1961-01-10 Standard Oil Co Optical bubble flowmeter
US2968172A (en) * 1958-02-10 1961-01-17 Philco Corp Detecting system
US3065630A (en) * 1958-10-15 1962-11-27 Swift & Co Gelatin bleeders for auto thermostats
US3156818A (en) * 1960-07-25 1964-11-10 Socony Mobil Oil Co Inc Radioactive fluid flow measuring apparatus with means for injecting a marker material between the source and detector
US3158445A (en) * 1960-07-06 1964-11-24 Oxford Lab Apparatus for determining prothrombin time
US3177756A (en) * 1960-02-15 1965-04-13 Beckman Instruments Inc Cuvette
US3187563A (en) * 1962-05-10 1965-06-08 Philip E Tobias Viscosimeter
US3199346A (en) * 1960-01-29 1965-08-10 William A Stewart Method and apparatus for measuring flow
US3422667A (en) * 1965-05-05 1969-01-21 Ceskoslovenska Akademie Ved Method of evaluating the concentration gradients in liquids
US3516284A (en) * 1968-06-19 1970-06-23 Nasa Leak detector
US3581101A (en) * 1968-07-13 1971-05-25 Teodorico Neeff Photoelectric bubble meter for checking gastight containers and the like
US3590256A (en) * 1969-03-05 1971-06-29 Teodorico Neeff Device with photoelectric bubble indicator for the checking of gas-tight containers and the like by immersion in a liquid
US3681985A (en) * 1970-11-09 1972-08-08 Geo Eng Lab Inc Liquid flow meter
US3827555A (en) * 1973-03-05 1974-08-06 Bio Physics Systems Inc Particle sorter with segregation indicator
US3984307A (en) * 1973-03-05 1976-10-05 Bio/Physics Systems, Inc. Combined particle sorter and segregation indicator
EP0016250A1 (en) * 1978-11-13 1980-10-01 Omnishell, Inc. Respiratory training system with patient feedback
US4614005A (en) * 1985-04-30 1986-09-30 Townsend Engineering Company Method and means for linking encased meat products
US4680977A (en) * 1985-03-06 1987-07-21 Ivac Corporation Optical flow sensor
US4860590A (en) * 1986-12-09 1989-08-29 Buck Albert P Primary standard gas flow calibrator
US5092181A (en) * 1990-06-21 1992-03-03 The Board Of Trustees Of The University Of Arkansas Method and apparatus for measuring gas flow using bubble volume
US5555797A (en) * 1988-05-27 1996-09-17 Samsung Electronics Co., Ltd. Control system and method for a kimchi fermentor
US20040020723A1 (en) * 2002-05-10 2004-02-05 Schuman Allan L. Method and system of providing a product in a refillable container and a refillable container
US20040098810A1 (en) * 2002-11-25 2004-05-27 Lancette Christopher J. Dispensing cartridge and method of dispensing a product from a dispensing cartridge
US20040122555A1 (en) * 2002-12-24 2004-06-24 Howes Ronald Bruce Dispenser having multiple modes of operation
US20040245279A1 (en) * 2003-05-05 2004-12-09 Bradley Tareasa L. System for dispensing an active ingredient using a dispensable tablet, dispensable tablet and container for holding such dispensable tablets
US20050269348A1 (en) * 2004-06-08 2005-12-08 Ecolab Inc. Tablet dispenser with isolated delivery sensor
US6991131B2 (en) 2003-09-02 2006-01-31 Ecolab, Inc. Distributable container and system and method using distributable container
US7201290B2 (en) 2003-05-12 2007-04-10 Ecolab Inc. Method and apparatus for mass based dispensing
US7694589B2 (en) 2007-12-12 2010-04-13 Ecolab Inc. Low and empty product detection using load cell and load cell bracket
US7803321B2 (en) 2005-03-18 2010-09-28 Ecolab Inc. Formulating chemical solutions based on volumetric and weight based control measurements
US8277745B2 (en) 2007-05-02 2012-10-02 Ecolab Inc. Interchangeable load cell assemblies
US8511512B2 (en) 2010-01-07 2013-08-20 Ecolab Usa Inc. Impact load protection for mass-based product dispensers
US8905266B2 (en) 2004-06-23 2014-12-09 Ecolab Inc. Method for multiple dosage of liquid products, dosing apparatus and dosing system
US8944286B2 (en) 2012-11-27 2015-02-03 Ecolab Usa Inc. Mass-based dispensing using optical displacement measurement
US9051163B2 (en) 2009-10-06 2015-06-09 Ecolab Inc. Automatic calibration of chemical product dispense systems
US9102509B2 (en) 2009-09-25 2015-08-11 Ecolab Inc. Make-up dispense in a mass based dispensing system
US9376306B2 (en) 2003-05-12 2016-06-28 Ecolab Inc. Methods of dispensing

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732753A (en) * 1956-01-31 o konski
US2458064A (en) * 1944-10-13 1949-01-04 Petta Angelo Raffaele Di Humidifier for air-heating furnaces
US2453376A (en) * 1944-11-21 1948-11-09 Francis H Lagasse Means for measuring the velocity and volume of fluids
US2532218A (en) * 1945-12-03 1950-11-28 Olin Mathieson Self-cleaning capillary tube type flowmeter
US2523517A (en) * 1947-07-07 1950-09-26 John T Potter Counting and batching device
US2492768A (en) * 1947-09-18 1949-12-27 Gen Electric Cloud moisture meter
US2593311A (en) * 1948-04-03 1952-04-15 Watson D Harbaugh Apparatus for detecting the presence of foreign bodies in transparent containers
US2769365A (en) * 1949-08-22 1956-11-06 Loeschcke Hans Counting device for microscopic particles
US2594668A (en) * 1950-01-12 1952-04-29 Atomic Energy Commission Flowmeter
US2710715A (en) * 1950-04-17 1955-06-14 Technicon Chromatography Corp Automatic fraction collection apparatus
US2789765A (en) * 1950-05-04 1957-04-23 Nat Coal Board Apparatus for counting and measuring particles
US2730005A (en) * 1951-10-09 1956-01-10 Gen Electric Means for detecting aerosol particles
US2649591A (en) * 1951-10-22 1953-08-25 Palma Adrien Lefebvre Electronic control for flushing apparatus
US2683986A (en) * 1952-05-27 1954-07-20 Us Navy Electric gas flowmeter
US2779232A (en) * 1953-04-09 1957-01-29 Frank R Small Blood counting method
US2770234A (en) * 1954-04-05 1956-11-13 Baxter Laboratories Inc Parenteral administration of liquids
US2953440A (en) * 1956-06-15 1960-09-20 Phillips Petroleum Co Analyzer and control apparatus
US2915606A (en) * 1956-09-13 1959-12-01 Berthold A Knauth Mechanism for measuring linear flow in flowmeters as a function of rotary motion therein
US2967450A (en) * 1957-01-30 1961-01-10 Standard Oil Co Optical bubble flowmeter
US2968172A (en) * 1958-02-10 1961-01-17 Philco Corp Detecting system
US3065630A (en) * 1958-10-15 1962-11-27 Swift & Co Gelatin bleeders for auto thermostats
US3199346A (en) * 1960-01-29 1965-08-10 William A Stewart Method and apparatus for measuring flow
US3177756A (en) * 1960-02-15 1965-04-13 Beckman Instruments Inc Cuvette
US3158445A (en) * 1960-07-06 1964-11-24 Oxford Lab Apparatus for determining prothrombin time
US3156818A (en) * 1960-07-25 1964-11-10 Socony Mobil Oil Co Inc Radioactive fluid flow measuring apparatus with means for injecting a marker material between the source and detector
US3187563A (en) * 1962-05-10 1965-06-08 Philip E Tobias Viscosimeter
US3422667A (en) * 1965-05-05 1969-01-21 Ceskoslovenska Akademie Ved Method of evaluating the concentration gradients in liquids
US3516284A (en) * 1968-06-19 1970-06-23 Nasa Leak detector
US3581101A (en) * 1968-07-13 1971-05-25 Teodorico Neeff Photoelectric bubble meter for checking gastight containers and the like
US3590256A (en) * 1969-03-05 1971-06-29 Teodorico Neeff Device with photoelectric bubble indicator for the checking of gas-tight containers and the like by immersion in a liquid
US3681985A (en) * 1970-11-09 1972-08-08 Geo Eng Lab Inc Liquid flow meter
US3984307A (en) * 1973-03-05 1976-10-05 Bio/Physics Systems, Inc. Combined particle sorter and segregation indicator
US3827555A (en) * 1973-03-05 1974-08-06 Bio Physics Systems Inc Particle sorter with segregation indicator
EP0016250A1 (en) * 1978-11-13 1980-10-01 Omnishell, Inc. Respiratory training system with patient feedback
US4680977A (en) * 1985-03-06 1987-07-21 Ivac Corporation Optical flow sensor
US4614005A (en) * 1985-04-30 1986-09-30 Townsend Engineering Company Method and means for linking encased meat products
US4860590A (en) * 1986-12-09 1989-08-29 Buck Albert P Primary standard gas flow calibrator
US5555797A (en) * 1988-05-27 1996-09-17 Samsung Electronics Co., Ltd. Control system and method for a kimchi fermentor
US5092181A (en) * 1990-06-21 1992-03-03 The Board Of Trustees Of The University Of Arkansas Method and apparatus for measuring gas flow using bubble volume
US20040020723A1 (en) * 2002-05-10 2004-02-05 Schuman Allan L. Method and system of providing a product in a refillable container and a refillable container
US6996869B2 (en) 2002-11-25 2006-02-14 Ecolab, Inc. Dispensing cartridge and method of dispensing a product from a dispensing cartridge
US20040098810A1 (en) * 2002-11-25 2004-05-27 Lancette Christopher J. Dispensing cartridge and method of dispensing a product from a dispensing cartridge
US6819977B2 (en) 2002-12-24 2004-11-16 Ecolab Inc. Dispenser having multiple modes of operation
US20040122555A1 (en) * 2002-12-24 2004-06-24 Howes Ronald Bruce Dispenser having multiple modes of operation
US20040245279A1 (en) * 2003-05-05 2004-12-09 Bradley Tareasa L. System for dispensing an active ingredient using a dispensable tablet, dispensable tablet and container for holding such dispensable tablets
US9376306B2 (en) 2003-05-12 2016-06-28 Ecolab Inc. Methods of dispensing
US7896198B2 (en) 2003-05-12 2011-03-01 Ecolab Inc. Method and apparatus for mass based dispensing
US7891523B2 (en) 2003-05-12 2011-02-22 Ecolab Inc. Method for mass based dispensing
US7410623B2 (en) 2003-05-12 2008-08-12 Ecolab Inc. Method and apparatus for mass based dispensing
US7201290B2 (en) 2003-05-12 2007-04-10 Ecolab Inc. Method and apparatus for mass based dispensing
US6991131B2 (en) 2003-09-02 2006-01-31 Ecolab, Inc. Distributable container and system and method using distributable container
US7097068B2 (en) 2004-06-08 2006-08-29 Ecolab Inc. Tablet dispenser with isolated delivery sensor
US20050269348A1 (en) * 2004-06-08 2005-12-08 Ecolab Inc. Tablet dispenser with isolated delivery sensor
US8905266B2 (en) 2004-06-23 2014-12-09 Ecolab Inc. Method for multiple dosage of liquid products, dosing apparatus and dosing system
US8540937B2 (en) 2005-03-18 2013-09-24 Ecolab Inc. Formulating chemical solutions based on volumetric and weight based control measurements
US7803321B2 (en) 2005-03-18 2010-09-28 Ecolab Inc. Formulating chemical solutions based on volumetric and weight based control measurements
US8277745B2 (en) 2007-05-02 2012-10-02 Ecolab Inc. Interchangeable load cell assemblies
US7694589B2 (en) 2007-12-12 2010-04-13 Ecolab Inc. Low and empty product detection using load cell and load cell bracket
US7954668B2 (en) 2007-12-12 2011-06-07 Ecolab Inc. Low and empty product detection using load cell and load cell bracket
US9102509B2 (en) 2009-09-25 2015-08-11 Ecolab Inc. Make-up dispense in a mass based dispensing system
US9051163B2 (en) 2009-10-06 2015-06-09 Ecolab Inc. Automatic calibration of chemical product dispense systems
US8511512B2 (en) 2010-01-07 2013-08-20 Ecolab Usa Inc. Impact load protection for mass-based product dispensers
US8944286B2 (en) 2012-11-27 2015-02-03 Ecolab Usa Inc. Mass-based dispensing using optical displacement measurement

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